{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "biomedical", "enabling technology", "concept or principle", "manufacturing standard", "engineering feature"], "input": "To further investigate the behavior of the structure , Brinell hardness , metallography and fractography have been performed ."}
{"machanical property": ["Brinell hardness"], "biomedical": [], "enabling technology": [], "concept or principle": ["structure", "metallography"], "manufacturing standard": [], "engineering feature": []}